Meaning

noun an ability that has been acquired by training

noun ability to produce solutions in some problem domain

originFrom Middle English skilen (also schillen), partly from Old English scilian (“to separate, part, divide off”); and partly from Old Norse skilja (“to divide, separate”); both from Proto-Germanic *skilōną, *skiljaną (“to divide, limit”), from Proto-Indo-European *(s)kelH- (“to split, cut”). Cognate with Danish skille (“to separate, discard”), Swedish skilja (“to distinguish, differentiate, part”),…

Etymology from Wiktionary, CC BY-SA 3.0